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// This file is part of the AspectC++ compiler 'ac++'.
// Copyright (C) 1999-2003 The 'ac++' developers (see aspectc.org)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307 USA
#ifndef __MatchType_h__
#define __MatchType_h__
#include <iostream>
using std::ostream;
using std::endl;
#include <vector>
using std::vector;
#include "Puma/CTypeInfo.h"
using namespace Puma;
class MatchName; // ugly cyclic relationship needed for conv type names
// common base class for all qualified types
class MTQual {
bool _const;
bool _volatile;
public:
MTQual () : _const (false), _volatile (false) {}
void qualify_const () { _const = true; }
void qualify_volatile () { _volatile = true; }
void unqualify () { _const = false; _volatile = false; }
bool is_const () const { return _const; }
bool is_volatile () const { return _volatile; }
bool is_qualified () const { return _const || _volatile; }
// print the string representation of this type
void print_qual (ostream &) const;
// perform a type match
bool qual_matches (CTypeQualified *qtype) const;
bool qual_matches (const MTQual *qual) const;
};
// this is a common base class for all nodes in a tree that represents
// a match pattern for a type. Despite normal type nodes this tree might
// also contain wildcards.
class MatchType {
protected:
// an id for the different kinds of types
typedef const char *TID;
// get the kind of type, e.g. bool, int, etc.
virtual TID type () const = 0;
public:
// virtual destructor
virtual ~MatchType () {}
// is it the same kind of type?
virtual bool operator ==(const MatchType &) const;
inline bool operator !=(const MatchType &t) const { return !(*this == t); }
//! print the string representation of this type
virtual void print (ostream &, const char* = 0, bool = false) const = 0;
//! check whether this is a function type
virtual bool is_function () const { return false; }
//! check whether this is an array type
virtual bool is_array () const { return false; }
//! check whether this type is 'void'
virtual bool is_void () const { return false; }
//! check whether this type is primitive
virtual bool is_primitive () const { return false; }
//! check whether this type is a reference
virtual bool is_reference () const { return false; }
//! create a clone of this match type
virtual MatchType *clone () const = 0;
//! get the base type if this is a derived type
virtual MatchType *base () const { return 0; }
// perform a type match
virtual bool matches (CTypeInfo *ctype) const = 0;
virtual bool matches (const MatchType &type) const = 0;
// adjust the argument types according to �8.3.5.2 and �8.3.5.3 of ISO C++
virtual void adjust_args (bool &f, bool &a, bool &q, bool &v) {}
// converts the type into an MTQual if it is one
virtual MTQual *qualified () { return 0; }
virtual const MTQual *qualified () const { return 0; }
};
// should later become "MatchType"
class MatchTypeRef {
MatchType *_type_info;
private:
// only members of this class can create instances without clear()
MatchTypeRef (MatchType *t) : _type_info (t) {}
public:
MatchTypeRef ();
MatchTypeRef (const MatchTypeRef ©) {
_type_info = copy._type_info->clone();
}
MatchTypeRef &operator = (const MatchTypeRef ©) {
clear ();
_type_info = copy._type_info->clone();
return *this;
}
~MatchTypeRef () { clear (); }
void clear () { delete _type_info; }
MatchType *type_info () const { return _type_info; }
// functions used to instantiate built-in primitive types
static MatchTypeRef make_any ();
static MatchTypeRef make_void ();
static MatchTypeRef make_bool ();
static MatchTypeRef make_signed_char ();
static MatchTypeRef make_unsigned_char ();
static MatchTypeRef make_char ();
static MatchTypeRef make_wchar_t ();
static MatchTypeRef make_unsigned_short ();
static MatchTypeRef make_short ();
static MatchTypeRef make_unsigned_int ();
static MatchTypeRef make_int ();
static MatchTypeRef make_unsigned_long ();
static MatchTypeRef make_long ();
static MatchTypeRef make_unsigned_long_long ();
static MatchTypeRef make_long_long ();
static MatchTypeRef make_float ();
static MatchTypeRef make_double ();
static MatchTypeRef make_long_double ();
// function used to instantiate a new named type
static MatchTypeRef make_named (const MatchName &mn);
// functions to construct complex types from built-in or named types
void to_pointer ();
void to_memb_pointer (const MatchName &mps);
void to_reference ();
void to_function (const vector<MatchTypeRef> &args, bool var_args);
void to_array (unsigned long dim);
void to_array ();
// common type interface
// perform a type match
bool matches (CTypeInfo *ctype) const {
return _type_info->matches (ctype);
}
bool matches (MatchTypeRef type) const {
return _type_info->matches (*type.type_info ());
}
// adjust the argument types according to �8.3.5.2 and �8.3.5.3 of ISO C++
void adjust_args (bool &f, bool &a, bool &q, bool &v) {
_type_info->adjust_args (f, a, q, v);
}
// print the string representation of this type
void print (ostream &os, const char *prefix = 0) const {
_type_info->print (os, prefix);
}
// check and get specific properties of this type
bool is_undefined () const {
return *type_info () == *MatchTypeRef ()._type_info;
}
bool is_qualifiable () const { return _type_info->qualified (); }
MTQual &qualifiers () const { return *_type_info->qualified (); }
bool is_function () const { return _type_info->is_function (); }
bool is_array () const { return _type_info->is_array (); }
bool is_void () const { return _type_info->is_void(); }
bool is_primitive () const { return _type_info->is_primitive(); }
bool is_reference () const { return _type_info->is_reference(); }
MatchTypeRef base () const {
MatchType *b = _type_info->base ();
return b ? MatchTypeRef (b->clone ()) : MatchTypeRef ();
}
};
inline ostream &operator << (ostream &out, const MatchTypeRef &mt) {
mt.print (out);
return out;
}
#endif // __MatchType_h__
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